WMSIC Electronic Components

Walsin 0805B222K102CT

Model0805B222K102CT
Package0805
Brand(Walsin)
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

18 specifications

Core information

Product name
(Walsin) 0805B222K102CT
Type
WALSIN
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
(WALSIN)
Electronic Component
0805B222K102CT
Electronic Component
1
Electronic Component
2.2nF
Package
0805
Electronic Component
SMD Capacitor(MLCC)
Electronic Component
±10%
Electronic Component
0.033g
Electronic Component
1
Electronic Component
BM0264536836
Electronic Component
X7R
Voltage
1kV
Electronic Component
Electronic Component
Electronic Component
3000

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

华新科0805B222K102CT多层陶瓷电容器(MLCC)产品概述

一、产品基本定位

0805B222K102CT是华新科(Walsin) 推出的表面贴装(SMD/SMT)多层陶瓷电容器(MLCC),属于中高压小容量常规工业级器件,适配对封装尺寸敏感、需宽温稳定工作的电子电路场景。该型号依托华新科成熟的MLCC制造工艺,兼顾性能可靠性与成本可控性,是工业、通信等领域的常用选型。

二、核心参数深度解析

型号编码直接对应关键电气性能,需结合应用场景准确理解:

  1. 容值与精度:标称容值2.2nF(编码“222”:前两位有效数字22,第三位倍率10²,即22×10²pF=2200pF=2.2nF),精度±10%(编码“K”,工业领域主流精度等级,平衡性能与批量成本);
  2. 额定电压:直流额定电压1kV(编码“102”:10×10²V=1000V),交流应用时需按频率降额(如1kHz下交流峰值电压不超过1kV,高频场景需进一步降低至额定值的70%以内);
  3. 温度系数:X7R(行业标准表示),工作温度范围-55℃+125℃,容值变化率≤±15%(对比Y5V的±20%+80%稳定性更优,对比COG(NPO)的±0.3%容量范围更宽,适合非高精度耦合/滤波场景)。

三、封装与工艺特性

1. 封装尺寸

采用0805封装(英制标准:0.08英寸×0.05英寸,公制约2.0mm×1.25mm),符合IPC-J-STD-001标准,适配常规SMT产线自动化贴装,支持高密度PCB设计(如手机、工业控制器等小体积设备);

2. 制造工艺

  • 多层陶瓷叠层:通过精密叠层工艺控制陶瓷层厚度,小封装下避免高压击穿,同时保证容量一致性;
  • 电极设计:端电极采用镍/锡合金(无铅环保),焊接兼容性强,可通过无铅回流焊(符合RoHS 2.0、REACH法规),抗热应力性能优异(满足J-STD-020标准);
  • 陶瓷介质:选用X7R基陶瓷材料,兼顾介电常数与温度稳定性,避免极端温度下容值漂移影响电路性能。

四、典型应用场景与优势

1. 适用场景

  • 工业电源:开关电源的高压滤波、耦合电路(如AC-DC转换的辅助电源、LED驱动电源的高压端);
  • 通信设备:射频模块的信号耦合、去耦(如基站RRU的小信号处理电路,需小封装高耐压);
  • 汽车电子:部分低压系统的高压辅助电路(如传感器模块的信号隔离、车载充电器的辅助电源,需宽温可靠性);
  • 医疗设备:小型化诊断设备的高压控制电路(如便携式心电图机的信号调理电路,符合低功耗、小体积需求)。

2. 核心优势

  • 小封装高耐压:0805封装实现1kV直流电压,解决空间紧凑场景下的高压电容选型难题(同类小封装产品中耐压表现突出);
  • 宽温稳定:X7R温度系数适配-55℃~+125℃环境,极端温度下容值变化可控,满足工业/汽车级宽温要求;
  • 品牌可靠性:华新科MLCC通过IEC 60384-1、AEC-Q200(部分批次)等认证,批量产品一致性好,故障率低;
  • 成本可控:±10%精度、常规封装设计,平衡性能与成本,适合中低端工业设备批量应用。

五、应用注意事项

  1. 电压降额:实际工作电压需低于额定值(建议直流电压≤900V,交流电压按频率降额),避免过压导致陶瓷击穿;
  2. 焊接工艺:回流焊温度不超过260℃(峰值温度时间≤10s),波峰焊温度≤245℃(时间≤5s),避免热冲击导致陶瓷开裂;
  3. 机械应力:SMD封装避免PCB过度弯曲(弯曲半径≥10mm),焊接后不施加机械外力(如手工焊接时避免镊子挤压);
  4. 温度限制:不超出-55℃~+125℃工作范围,极端低温/高温下需验证容值变化是否满足电路需求(如冬季户外设备需提前测试)。

该型号作为华新科常规高压MLCC产品,广泛适配工业、通信等领域的中小功率高压电路,是空间受限场景下的高性价比选型。

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